Umbrella pivot-joint.



No. 861,584. P111E11TED JULY so, 1907.A

HARTZBLL UMBRELLA PIVOT-JOINT.

S. S. FRETZ L M. H.

APPLICATION FILED JUNE 6. 1906.

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I PATENTED JULY 30, 1907. S. S. FRBTZ & M. H. HA'RTZBLL.

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UMBRBLLA PIVOT JOINT- APPLIOATION FILED JUNE 6. 1906.

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SAMUEL S. FRETZ AND MORRIS H. HARTZELL, OF PHILADELPHIA, PENNSYLVANIA,

4ASSIGrNORS TO S. S. FRETZ MANUFACTURING COMPA SYLVANIA.

UMBRELLA PIVOT-J' OIN T.

Specification of Letters Patent.

Patented July 30, 1907.

Application filed June 6,1906. Serial No. 320,432.

To all whom it may concern:

Be it known that we, SAMUEL S. FRF/rz and MORRIS H. HARTZELL, citizens of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Umbrella Pivot-Joint, of which the following is a speciiication.

Our invention consistspf a pivot joint for an umbrella composed of a plate of 'the contour of that of the trough or channel of a paragon rib and having its ends on the back of said rib, whereby the material of the rib which occupies the troughor channel is solid or unbroken and so possesses great strength and wearing qualities adjacent to the axis of the stretcher and rib and the plate is more easily fitted on the rib.

It further consists in providing the plate with integral bearings for the stretcher and rib, thus providing means for the durability of the axis of the stretcher and rib and avoiding the employment of separate pins for said axis.

Figure l represents a perspective view of a pivot joint for' an umbrella joint embodying our invention. Fig. 2 represents a transverse section thereof on an enlarged scale. Fig. 3 represents a longitudinal section thereof on line Fig. l. Fig. 4 represents a trans-y verse section thereof on line y-y Fig. l on an enlarged scale. Fig. 5 represents a face view of the joint in primary condition. Fig. 6 represents a side elevation of the joint as applied to a self-opening frame. Fig.,

7 represents an elevation at a right-angle to Fig. 6. Fig. 8 represents a longitudinal section thereof. Fig. 9 represents a transverse section on line z-z Fig. 7, on an enlarged scale. Fig. I0 represents a side elevation of another form of joint as applied to a self-opening frame. Fig. ll represents an elevation at a right-angle to Fig. l0. Fig. l2 represents a transverse section on line a-a Fig. Il on an enlarged scale. Fig. I3 represents a transverse section on line b-b Fig. l1 on an enlarged scale.

Similar letters of reference indicate corresponding parts in the gures.

Referring to the drawings: A designates a joint which is constructed of a plate B of metal or other suitable material, the body of which is inturned so as to conform to the trough or channel of a paragon rib A and embrace the flanges thereof, the plate being bent over the back of the rib and having its ends BQ B, meeting or approximately meeting on said back. By this construction, the joint is more conveniently applied to a rib as the terminals of the joint are on the back of the rib instead of within the trough or channel, while the portion of the joint within said trough or channel is solid and unbroken and thus the joint presents great strength at the portion occupying the trough or channel, where the greatest strain is imparted to the joint, owing to the connection of the pivotal portion of the stretcher with the joint within said trough or channel.

In order to form bearings for the stretcher on the plate, the latter is formed with teats O which are struck-up from the metal constituting the joint, said teats when the plate is located on a rib, projecting inwardly towards each other and entering the opening in the end of the stretcher or rib, thus forming a pivot joint for the stretcher or rib, the same being strong, durable, inexpensive and avoiding the employment of a separate pivot pin.

In order to permit the proper rotation of the extreme end of the stretcher or rib within the plate, a portion of the latter adjacent to the bearings is cut-away forming a recess D, which receives said end and consequently admits of freedom of motion of the end of the stretcher B2 in the space afforded or provided.

In Figs. 6, 7, 8 and 9, We show two stretchers as connected with the joint A for the purpose of a selfopening umbrella frame. In this case, the joint has two sets of teats O integral with the same as forming separate bearings for said stretchers, so that said stretchers are adapted to fold in the rib in opposite directions as shown in Figs. 7 and 8, but in other respects the ends BC BC of the joint meet on the back of the rib as'in the previous gures.

In Figs. l0, Il, l2 and I3, we show two stretchers as connected with the joint A, likewise for the purpose of a self-opening umbrella frame. In this case, the

. joint has two sets of teats C2 integral with the same,

forming separate bearings for said stretchers so that one stretcher may fold into the rib and the other stretcher may fold over the first-named and consequently over the rib as shown in Figs. Il and I3.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent, isf

l. An umbrella joint composed of a plate of the contour of a paragon rib, said plate having its portions receivable within the rib provided with teats, said plate having parallel portions between which the sides of the rib are receivable, the terminals of said plate being on the back of the rib. v

2. An umbrella pivot joint comprising bearings integral with the joint to engage an opening in an umbrella member received between said bearings andterminals to engage over the back of the rib.

3. An umbrella joint formed of a plate bent upon itself and having portions to engage within the trough of a rib,

NY, A CORPORATION OF PENN- and having teats integral therewith forming bearings for an umbrella stretcher or rib and terminals to engage o'ver the back of the rib.

4. An umbrella joint formed of a plate bent upon itself and having portions to engage Within the trough of a rib and having bearings integral therewith for 'mounting on an umbrella member and having a recess adjacent to said bearings for the play of the adjacent terminal of said member.

5. An umbrella joint formed of a plate bent upon itself and having portions to engage within the trough of a rib and having teats integral therewith for mounting on an SAMUEL S. FRETZ. MORRIS H. HARTZELL.

Witnesses: Y

JOHN A. WIEDERSHEIM, S. R. CARR. 

